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0.91ct H SI2 Round Lab Grown Diamond

EX • H/SI2 • IGI LG478121789

Shape and cutting style on the report: Round brilliant

Certificate IGI LG478121789

Diamond specifications and retailer prices

From $690 SGD
$540 USD
As of October 30, 2026
Save $3,495 SGD (84%) vs most expensive(unlock to see where)
5 retailers carry this diamond
Most expensive: $4,186 SGD at MOH London · As of October 29, 2026
View at MOH London

About this 0.91ct lab-grown round diamond

This 0.91ct lab-grown round sits in the just-under-one-carat band, graded H colour (near-colourless) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG478121789 or 478121789. Listed at 5 retailers as of October 29, 2026, with prices from $690 to $4,186, a $3,495 spread on the same certified stone. MOH London lists it at $4,186. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

0.91
Carat
H
Colour
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.5°
Pavilion angle40.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG478121789
Dimensions6.29 × 6.28 × 3.76 mm
L/W Ratio1.00
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process and may include post-growth treatment Type IIa
Top View
6.29 mm6.28 mm0.91 ctH / SI2
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG478121789
Side View
Table 61.0%Crown 33.5°Girdle: MED-STKPavilion 40.8°Culet: NoneDepth 59.9%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 30
Current: $4,186 SGD|Low: $690 SGD|High: $4,218 SGD|Avg: $1,973 SGD|+0.5%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
October 30, 2026
Retailer 2$690 SGD
Retailer 4$1,060 SGD
Retailer 7$1,090 SGD
Retailer 6$1,663 SGD
Retailer 5$1,721 SGD
Retailer 3$1,835 SGD
MOH London$4,186 SGD

20 data points across 7 retailers

5 retailers$690 SGD to $4,186 SGD

A
Cheapest Retailer
-
$690 SGD
$540 USD
Retailer 2
-
$1,060 SGD
$829 USD
View
Price last confirmed 18 days ago
B+
Retailer 3
-
$1,721 SGD
$1,346 USD
View
B+
Retailer 4
-
$1,835 SGD
€1,367 EUR
View
Most Expensive
B
MOH London
LG478121789 · Oct 29
$4,186 SGD
£2,578 GBP
View
4 more retailers have this diamond
Prices start from $690 SGDSave up to $3,495 SGD

Carat Hunter is not affiliated with, endorsed by, or sponsored by any retailer listed. Retailer information is from publicly available sources and may not be current. Verify details directly with the retailer before purchasing. Return terms as we hold them. Check the retailer's own returns page before you buy.

A
0.91ct Round
$690 SGD